CVE-2023-2455

Name	CVE-2023-2455
Description	Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3422-1, DSA-5401-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
postgresql-11 (PTS)	buster	11.16-0+deb10u1	vulnerable
	buster (security)	11.22-0+deb10u2	fixed
postgresql-13 (PTS)	bullseye	13.13-0+deb11u1	fixed
	bullseye (security)	13.14-0+deb11u1	fixed
postgresql-15 (PTS)	bookworm	15.5-0+deb12u1	fixed
	bookworm (security)	15.6-0+deb12u1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
postgresql-11	source	buster	11.20-0+deb10u1	DLA-3422-1
postgresql-11	source	(unstable)	(unfixed)
postgresql-13	source	bullseye	13.11-0+deb11u1	DSA-5401-1
postgresql-13	source	(unstable)	(unfixed)
postgresql-15	source	(unstable)	15.3-0+deb12u1

Notes

https://www.postgresql.org/about/news/postgresql-153-148-1311-1215-and-1120-released-2637/
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=473626cf00babd829eb15c36b51dfb358d32bc95 (REL_11_20)